Nitecore UT27: Ultra lightweight dual beam elite headlamp

Designed for trail running, camping, and general outdoor use, providing reliable, adaptable lighting in a durable and user-friendly design.

800 lumen brightness over 160 meters
6500K white light 3000K warm light
Ultralight 74g (2.61oz).
Dual power sources: rechargeable battery or 3xAAA
USB-C recharge port on removable battery
Skin-friendly headband is comfortable and breathable
IP66 rated 1m impact resistant
Diffuser lantern sock transform your light into a lantern

Designed to meet the rigorous demands of extended ultra marathon races

TrueVision Technology - Muti-faceted optical dual-lens system with over 94% light transmission. The beam can extend for very long distances and deliver a smooth transtion while providing widespread visibility. The light is also uniform and soft, easing eye strain over prolonged use.

Whie Light Warm Light Red Light - On their own, each offer a fusion lighting effect of floodlight and long-throw spotlight and emit an output of up to 500 lumens.

When needed, go 800 lumens turbo with both LEDs for 30 seconds. Perfect for navigating dark situations, spotting signs or checking road conditions from a distance.

Red light settings in both flashing and constant modes, which are great for maintaining night vision and for emergency signaling without blinding others.

Incredibly Lightweight and Comfortable - With improvements in brightness, runtime and beam, the headlamp still weights only 74 grams. Bracket, headband and battery included! The headband is reflective for visibility, has a hollow band for breathability and silicon strip to divert sweat from your eyes.

Dual power source - The headlamp can be powered by both a proprietary rechargeable battery and standard AAA batteries, offering flexibility in how you charge it. A glow in the dark battery compartment aids in battery swapping on the go. Takes just under 2 hours to charge the included HLB1300 li-ion battery pack.

Easy to use controls - Dual power buttons for the different beam colors. Easy to understand and use on the trails. Includes a diffuser sock that transforms your headlamp into a lantern.

Gear Up for Ultra Marathons with Lightweight, Endurance-Optimized Lighting

Navigating ultra marathons requires not only incredible physical endurance but also gear that can meet the extreme demands of long-distance trail running.

The Nitecore UT27 Pro is engineered for runners who face the challenge of changing terrains and extended hours in the dark. This headlamp ensures a steady, reliable light source that adapts to both open landscapes and densely wooded paths.

With its dual beam technology offering both warm and cool white light, the UT27 Pro provides tailored visibility to match specific trail conditions, enhancing safety and performance.

Its ultra-lightweight design and breathable, skin-friendly headband mean you can wear it comfortably for hours, focusing on your run without distraction.

Designed to support the rigorous needs of ultra marathon runners, the UT27 Pro features versatile power options for prolonged use—rechargeable for regular training and AAA batteries for those long race days.

It’s more than just a headlamp; it’s a vital part of your ultra-running toolkit, enabling you to push your limits and power through the night with confidence and clarity.

OUTPUT AND RUNTIME (HLB1300 Battery Pack)

MODE	LUMENS	RUNTIME	DISTANCE	INTENSITY
Turbo	800	-	160m	6,347cd
White Light
High	500	2h 30min	132m	4,373cd
Mid	280	5h 30min	104m	2,696cd
Low	100	11h	63m	994cd
Warm Light
High	500	2h 30min	124m	3,871cd
Mid	280	5h 30min	91m	2,078cd
Low	100	11h	56m	799cd
Red Light
Constant-on	10	20h	6m	9cd
Flashing	10	40h	-	-

OUTPUT AND RUNTIME (3 X AAA Batteries)

MODE	LUMENS	RUNTIME	DISTANCE	INTENSITY
Turbo	800	-	160m	6,347cd
White Light
High	500	1h 30min	132m	4,373cd
Mid	280	3h	104m	2,696cd
Low	100	7h	63m	994cd
Warm Light
High	500	1h 30min	124m	3,871cd
Mid	280	3h 30min	91m	2,078cd
Low	100	7h	56m	799cd
Red Light
Constant-on	10	16h	6m	9cd
Flashing	10	32h	-	-

*CERTIFIED ANSI/PLATO FL1 Standard

ANSI/PLATO FL1 Standard is a set of flashlight performance guidelines that confirms the light you're buying has been tested to spec, and you're not buying into false performance claims.

TECHNICAL SPECS

LED	6500K White light 300K Warm light
Reflector	TrueVision Dual Lens
Battery Requirements	1x or 3x AAA Battery
Special Modes	White, Warm, Red, Red Flashing
IP Rating	IP66, Weather Resistant
Impact Resistance	1 m
Dimensions	56mm x 46.6mm x 32mm / 2.20" x 1.83" x 1.26" (Bracket included)
Weight	48 g / 1.69 oz (Bracket and headband included) 74g g / 2.61 oz (Bracket, headband and battery included)

Compatible Batteries

TYPE	SIZE / VOLTAGE	WORKS?
	- / 3.7V	Yes
Primary Alkaline Battery	AAA / 1.5V	Yes
Rechargeable Ni-MH Battery	AAA / 1.2V	No
Rechargeable LFP Battery	10400 / 3.2V	No
Rechargeable Li-ion Battery	10400 / 3.7V	No